I would want a tonearm with removable headshell, to pre-mount a few cartridges, including Mono. Arm height adjustment is important.
Or, if you find yourself with a lot of Jazz, probably a good bit of Mono LPs, two arms, one with removable headshell and easy arm height change.
Luxman PD444 is a terrific TT, track and sliding plates for 2 tonearms
This shows the Luxman PD444 well
I helped my friend put two Micro Seiki 505 arms on his
same design, single arm version PD-441
I have this, totally awesome arm, members here told me about it, then found one for sale for me
Mounted in the back of my JVC PL-2 two arm plinth (I squeezed a small Mission arm on the left for Mono ready to go)